Telescope mounting for guns



July 20, 1948. E. F. BENGERT TELESCOPE MOUNTING FOR GUNS Filed July 24, 1944 Mm NM INVENTOR: iqyar EBEfljGI' 7 BY M55 A TTORNEYS.

Patented July 20, 1948 "UNHTED STATES PATENT OFFICE TELESICGPE MOUNTLNG FDR GUNS Edgar-F. Bengert, Kansas City, 'Mo assig nc'r of one-half to A. N. "Brunson Application July 24, 1944, .Serial No. 546,322

This invention relates to a device for laying a gun and more particularly to a telescope mounting for guns, or other devices.

Mechanical devices employed to facilitate accurate laying constitute the sighting system of a gun. The .path of a missile fired from a gun, called the trajectory, is a curve due to the action of the force of gravity and the resistance .of the air. The force of gravity will cause the trajectory to bend downward, and if the missile is an oblong projectile rotating about its longitudinal axis, the resistance of the air will cause it to bend either to the right or left, depending upon the direction of rotation. It is, therefore, the purpose of a gun sight to overcome these difficulties by placing the gun sight on the gun barrel so that the barrel will be pointed in the direction of the target and the missile fired from the gun will carry accurately to the target.

Heretofore, it has been customary to place the sighting device stationary on the barrel of a gun. The difiiculty with the stationary mounting of a telescope sight placed on the gun barrel is that if such sight is removed for any purpose, it is difficult to get the proper adjustment of such sight back on the barrel.

It is the purpose of applicants invention to overcome this diiiiculty of adjustment by providing a mounting for telescopic sights which may be placed on the barrel of a. gun and the telescopic sight removed and replaced thereon without precision adjustment of the sight with the barrel.

Other objects of the present invention are to provide a convenient, relatively economical, and highly efflcient mounting for a telescopic gun sight; to provide for facilitating placement of the mounting on a gun barrel; to provide for adjustment of the telescopic sight on the mounting; and to provide improved elements and arrangements thereof in a gun sight mounting of the character and for the purposes noted.

In accomplishing these and other objects of the present invention, I have provided improved details of structure, the preferred form of which is illustrated in the accompanying drawing wherein:

Fig. 1 is a perspective view of my invention showing the same mounted on a gun barrel.

Fig. 2 is a perspective view of my mounting and the sleeve for holding the telescope sight shown in disassembled relation.

Fig. 3 is a cross sectional view of the mounting and sleeve in assembled relation.

Fig. 4 is a cross sectional view taken on a line 4-4 Fig. .5.

Fig. '5 'is a plan View with parts broken away to illustrate the adjusting screw.

Referring more in detail to the drawing:

l designates a rifle of conventional typehaving a barrel 2 and chamber 3. "My "mounting structure proper comprises a base 4 which may be of any desired shape :but is here shown tobe substantially rectangular and provided with a longitudinal groove 5 in "the underiace thereof adapted to conform to the shape of the gun barrel 2. The base '4 is preferably fixed to the chamber 3 by screws or similar fastening devices 6 and 7, although it may "be fixed to "the barrel or what is sometimes called the receiver or chamber ring of the gun. 8 designates a split sleeve member having a plane underface 9 of slightly less width than the base 4 for a purpose later described. The sleeve 8 has a boss Hi having an annular V -shaped groove 11 therein depending downwardly from substantially the center of said sleeve adapted to fit into a cylindrical aperture l2 in the base 4.

In the upper marginal edge of the base member 4 and near the end [3 thereof I provide recesses l4 and I5 and having inwardly extending bore openings l6 and IT. The bore openings l6 and I! are screw threaded and adapted to receive windage screws l8 and I9 having cylindrical heads 20 and 2| of a circumference suiiicient to extend slightly above the base member 4 and provided with the usual grooves 22 in their outer faces adapted to receive a screw driver or other tool for adjustment of said screws.

The base 4 is provided with a boss 24 preferably on one side and at substantially the center thereof as indicated at 25. The boss 24 is provided with an opening 26 which also extends through the side wall 25 of the base to connect with the opening l2 therein. The opening is provided with screw threads 21 adapted to receive a set screw 28 having a head 29, threaded shank 30 and a point 3| adapted to extend through the opening 26 in the boss 24 and side wall 25 of the base 4 for engagement with the annular groove H in the depending boss ID on the underside of the sleeve 8 when the sleeve is mounted on the base.

The opening 3| of the sleeve 8 is adapted to receive a telescope device 32, and the sleeve is provided on its upper cylindrical edge with flanges 33 and 34 having adjusting screws 35 thereon. When the telescope device 32 is placed in the opening 3| of the sleeve, tightening of 3 the screws 35 will hold the telescope rigidly in place in said sleeve.

Assemblage of a device constructed as described is as follows:

The base 4 is rigidly attached to the barrel 2 of a gun of ordinary construction by the screws 6 and I. It will be noted that the heads of the screws 6 and 1 are countersunk as indicated at 36 to provide a smooth surface 36 for the lower face 9 of the sleeve 8. When the base 8 has been attached to the gun barrel, the sleeve 8 is placed over the base with the depending boss I inserted in the cylindrical opening l2. When the sleeve 8 is placed on the base 4, the faces 31 and 38 of the windage screws I1 and [6 will contact the side walls 39 and 49 of the face 9 of said sleeve. By adjustment of the screws 16 and l! the sleeve 8 may be adjusted for proper windage of the telescope device carried by the sleeve. The boss In is of a length sufficient to extend in the opening l2 a distance so that the point 3| of the shank 30 of the set screw 28 will contact the annular groove 1 I in said depending boss. Pressure of the set screw on the sloping side 39 of the groove will tend to draw the boss downwardly and thus hold the sleeve rigidly on the base portion 4. Removal of the sleeve including the telescopic sight 32 is accomplished merely by loosening the set screw 28 a sufilcient distance so that the point 3| will be free of the groove II and then the split sleeve 8 may be disengaged from the base It is apparent, therefore, that a convenient, economical and efficient telescope mounting has been provided by the present invention in which the telescope sight may be removed from and replaced on the mounting without adjustment relative to the un barrel.

While I have shown my telescope mounting in connection with a gun, it will be apparent to those skilled in the art that it may be adapted to other purposes, such as mounting a telescope on a tripodor other instrument.

What I claim and desire to secure by Letters Patent is:

A telescope mounting for guns comprising, a base member rigidly secured to a gun barrel, said base member having a cylindrical aperture extending vertically through the center of said base member and said base member having recesses in the upper edges of the respective sides near the rear end thereof provided with threaded openings, a split sleeve for carrying a telescope, said sleeve having a depending boss at substantially the center of said sleeve for rotatable engagement in the aperture in said base member and said boss having an annular recess therein, screws having threaded shanks engaging in the openings in the recesses in said base member and having heads extending above the upper edge of said base member for engaging the sides of said sleeve to rotate the sleeve on said base member for adjusting windage of the telescope carried by said sleeve, a boss extending from one side of said base member having a threaded opening extending through said boss and said base member to intersect with the aperture in said base member and align with the annular recess in the boss of said sleeve, and a screw having its shank engaged in said threaded opening and having its inner end pointed to engage in the annular groove in said boss to hold the sleeve rigidly to the base member.

EDGAR F. BENGERT.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,117,782 Camus Nov, 17, 1914 1,710,547 Meise Apr. 23, 1929 1,908,276 Aldeborgh May 9, 1933 2,135,774 Tilden Nov. 8, 1938 2,187,054 Redfield Jan. 16, 1940 

